DE69319797T2 - Stossdämpfersystem und -verfahren in einer Schreib-/Leseplattenvorrichtung - Google Patents
Stossdämpfersystem und -verfahren in einer Schreib-/LeseplattenvorrichtungInfo
- Publication number
- DE69319797T2 DE69319797T2 DE69319797T DE69319797T DE69319797T2 DE 69319797 T2 DE69319797 T2 DE 69319797T2 DE 69319797 T DE69319797 T DE 69319797T DE 69319797 T DE69319797 T DE 69319797T DE 69319797 T2 DE69319797 T2 DE 69319797T2
- Authority
- DE
- Germany
- Prior art keywords
- transducer
- accelerometer
- disk
- track
- position error
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 21
- 230000035939 shock Effects 0.000 title claims description 17
- 239000006096 absorbing agent Substances 0.000 title 1
- 230000001133 acceleration Effects 0.000 claims description 64
- 230000006870 function Effects 0.000 claims description 19
- 230000004044 response Effects 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 101000606504 Drosophila melanogaster Tyrosine-protein kinase-like otk Proteins 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000005055 memory storage Effects 0.000 claims 3
- 238000010845 search algorithm Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5582—Track change, selection or acquisition by displacement of the head across disk tracks system adaptation for working during or after external perturbation, e.g. in the presence of a mechanical oscillation caused by a shock
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
- Control Of Position Or Direction (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/893,303 US5299075A (en) | 1992-06-04 | 1992-06-04 | Apparatus and method for shock attenuation in a disk recording and/or reproduction system using variable gain acceleration sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69319797D1 DE69319797D1 (de) | 1998-08-27 |
| DE69319797T2 true DE69319797T2 (de) | 1998-12-03 |
Family
ID=25401359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69319797T Expired - Fee Related DE69319797T2 (de) | 1992-06-04 | 1993-04-21 | Stossdämpfersystem und -verfahren in einer Schreib-/Leseplattenvorrichtung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5299075A (enrdf_load_stackoverflow) |
| EP (1) | EP0572789B1 (enrdf_load_stackoverflow) |
| JP (1) | JP3723581B2 (enrdf_load_stackoverflow) |
| DE (1) | DE69319797T2 (enrdf_load_stackoverflow) |
Families Citing this family (53)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6600631B1 (en) * | 1989-11-27 | 2003-07-29 | Censtor Corp. | Transducer/flexure/conductor structure for electromagnetic read/write system |
| US5545962A (en) * | 1992-08-18 | 1996-08-13 | Canon Kabushiki Kaisha | Positioning system |
| US5696645A (en) * | 1993-10-22 | 1997-12-09 | Maxtor Corporation | Apparatus for protecting memory devices from external shock forces by using an integrating band pass filter |
| US5521772A (en) * | 1993-11-30 | 1996-05-28 | International Business Machines Corporation | Disk drive with accerleration rate sensing |
| US5654840A (en) * | 1994-06-30 | 1997-08-05 | Western Digital Corporation | Hard disk drive which uses the back EMF of the actuator to detect shocks |
| US5734598A (en) * | 1994-12-28 | 1998-03-31 | Quantum Corporation | Low power filter coefficient adaptation circuit for digital adaptive filter |
| US5663847A (en) * | 1995-03-27 | 1997-09-02 | Abramovitch; Daniel Y. | Rejection of disturbances on a disk drive by use of an accelerometer |
| JP3265149B2 (ja) * | 1995-04-04 | 2002-03-11 | シャープ株式会社 | 情報記録再生装置のモータ制御装置 |
| US5777815A (en) * | 1996-06-13 | 1998-07-07 | International Business Machines Corporation | Disk drive with shock detection based on thermoresistive signal from magnetoresistive head |
| JPH1139783A (ja) * | 1997-07-14 | 1999-02-12 | Internatl Business Mach Corp <Ibm> | 情報記録装置の起動方法及び装置 |
| US6038924A (en) * | 1997-12-22 | 2000-03-21 | Research Foundation Of State Of New York | Low frequency seismic accelerometer |
| US6222336B1 (en) | 1998-06-05 | 2001-04-24 | Seagate Technology Llc | Rotational vibration detection using spindle motor velocity sense coils |
| US6285522B1 (en) | 1998-06-05 | 2001-09-04 | Seagate Technology Llc | Rotational vibration compensation using a dedicated surface with a constant frequency pattern |
| US6088185A (en) * | 1998-06-05 | 2000-07-11 | Seagate Technology, Inc. | Rotational vibration detection using a velocity sense coil |
| US6304406B1 (en) | 1998-06-05 | 2001-10-16 | Seagate Technology Llc | Rotational vibration compensation using a fixed head and a constant frequency pattern |
| US5979249A (en) * | 1998-06-09 | 1999-11-09 | Samsung Electronics Co., Ltd. | Actuator resonance tester for a disk drive |
| JP2000260105A (ja) | 1999-03-10 | 2000-09-22 | Fujitsu Ltd | 記憶ディスク装置の加速度センサの校正方法 |
| JP2000322812A (ja) * | 1999-05-10 | 2000-11-24 | Matsushita Electric Ind Co Ltd | 磁気ディスク装置、その磁気ヘッドの復帰方法及びそのプログラムを記録した記録媒体 |
| WO2001008138A1 (en) | 1999-07-23 | 2001-02-01 | Seagate Technology Llc | Disturbance rejection for disc drives using adaptive accelerometer feedforward servo |
| US6512647B1 (en) | 1999-08-27 | 2003-01-28 | Seagate Technology Llc | Method and apparatus for adaptive tuning bias current for magnetoresistive head |
| US6414813B2 (en) | 2000-02-07 | 2002-07-02 | Seagate Technology Llc | Rotational acceleration correction in a disc drive |
| JP4213850B2 (ja) * | 2000-06-01 | 2009-01-21 | 富士通株式会社 | ディスク装置の制御方法およびディスク装置 |
| US6530550B1 (en) * | 2000-09-13 | 2003-03-11 | Nextengine, Inc. | Wireless turntable |
| US6771454B2 (en) | 2000-10-13 | 2004-08-03 | Seagate Technology Llc | Suspension sense capability for windage control |
| US6914743B1 (en) * | 2000-11-30 | 2005-07-05 | Western Digital Technologies, Inc. | Vibration cancellation in a disk drive by using an acceleration sensor and adaptively adjusting its gain to minimize external acceleration effects |
| US6538839B1 (en) * | 2001-01-31 | 2003-03-25 | Western Digital Technologies, Inc. | Disk drive employing adaptive feed-forward vibration compensation to enhance a retry operation |
| DE10122601C2 (de) * | 2001-05-10 | 2003-03-27 | Grundig Ag | Verfahren und Vorrichtung für optische Datenerfassung |
| US7327103B1 (en) * | 2001-08-31 | 2008-02-05 | Maxtor Corporation | Driver and method for control of voice coil motor in disk drive |
| JP2003173639A (ja) * | 2001-11-30 | 2003-06-20 | Toshiba Corp | 記録再生装置 |
| SG103906A1 (en) * | 2002-03-13 | 2004-05-26 | Toshiba Kk | Method and apparatus for head positioning control in a disk drive |
| US6963463B2 (en) * | 2002-05-24 | 2005-11-08 | Hitachi Global Storage Technologies Netherlands B.V. | Rotational vibration velocity-based sensor for disk drives |
| JP3751954B2 (ja) * | 2003-04-25 | 2006-03-08 | 株式会社東芝 | ディスク記憶装置及びヘッド位置決め制御方法 |
| US6937423B1 (en) * | 2004-02-06 | 2005-08-30 | Western Digital Technologies, Inc. | Reducing effects of rotational vibration in disk drive |
| ITTO20040436A1 (it) | 2004-06-28 | 2004-09-28 | St Microelectronics Srl | Dispositivo di rilevamento di caduta libera per la protezione di apparecchi portatili. |
| US7633839B2 (en) * | 2004-08-20 | 2009-12-15 | Hewlett-Packard Development Company, L.P. | Self-sensing active-damping voice coil |
| US7369345B1 (en) | 2004-12-03 | 2008-05-06 | Maxtor Corporation | Mobile hard disk drive free fall detection and protection |
| US7350394B1 (en) * | 2004-12-03 | 2008-04-01 | Maxtor Corporation | Zero-g offset identification of an accelerometer employed in a hard disk drive |
| JP2006337505A (ja) * | 2005-05-31 | 2006-12-14 | Sony Corp | 音楽再生装置および処理制御方法 |
| US7468857B2 (en) * | 2006-02-10 | 2008-12-23 | Maxtor Corporation | Acceleration feed-forward correction enabled or disabled based on track follow loop signals |
| US7701660B1 (en) * | 2006-03-20 | 2010-04-20 | Marvell International Ltd. | Shock cancellation system |
| JP4783248B2 (ja) * | 2006-09-12 | 2011-09-28 | 東芝ストレージデバイス株式会社 | 外乱抑圧機能を持つ位置制御方法、位置制御装置および媒体記憶装置 |
| DE102007009324A1 (de) * | 2007-02-22 | 2008-08-28 | Deutsche Thomson Ohg | Schockschutzeinrichtung für eine einen Schwingarm-Aktuator aufweisende Abtasteinrichtung |
| JP4970184B2 (ja) * | 2007-07-30 | 2012-07-04 | 株式会社東芝 | 記憶装置、制御方法及び制御装置 |
| US7768738B2 (en) * | 2007-11-13 | 2010-08-03 | Sensor Platforms, Inc. | Mitigating the effects of disturbances of a disk drive |
| US7852588B1 (en) | 2008-06-23 | 2010-12-14 | Western Digital Technologies, Inc. | Disk drive adjusting gain of shock detector relative to resonant frequency amplitude |
| US20100079906A1 (en) * | 2008-09-29 | 2010-04-01 | Wile Donald T | Adaptive Feed Forward Rotational Vibration Compensation During a SEEK Operation |
| US8179626B1 (en) | 2009-12-04 | 2012-05-15 | Western Digital Technologies, Inc. | Adaptive shock detection |
| US8896955B1 (en) | 2010-08-31 | 2014-11-25 | Western Digital Technologies, Inc. | Adaptive track follow control |
| US8634158B1 (en) | 2011-11-16 | 2014-01-21 | Western Digital Technologies, Inc. | Disk drive generating feed-forward actuator compensation based on a speaker driver signal |
| US8737013B2 (en) | 2011-11-16 | 2014-05-27 | Western Digital Technologies, Inc. | Disk drive selecting disturbance signal for feed-forward compensation |
| GB2503204A (en) * | 2012-05-03 | 2013-12-25 | Nan Gall Energy Systems Ltd | Downhole control device |
| US9111575B1 (en) | 2014-10-23 | 2015-08-18 | Western Digital Technologies, Inc. | Data storage device employing adaptive feed-forward control in timing loop to compensate for vibration |
| US10347278B1 (en) | 2018-10-24 | 2019-07-09 | Western Digital Technologies, Inc. | Data storage device configuring a write inhibit shock threshold for multiple actuators |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068302A (en) * | 1976-02-27 | 1978-01-10 | Black Bocs, Ltd. | Computer performance measurement |
| JPS5862869A (ja) * | 1981-10-09 | 1983-04-14 | Takagi Kogyo Kk | 磁気デイスク装置用磁気ヘツド位置決め装置 |
| US4551776A (en) * | 1982-12-20 | 1985-11-05 | International Business Machines Corporation | Automatic reference adjustment for position error signal on disk file servo system |
| JPS6035377A (ja) * | 1983-08-03 | 1985-02-23 | Olympus Optical Co Ltd | 磁気記録再生装置 |
| US4764860A (en) * | 1985-06-26 | 1988-08-16 | Nippon Gakki Seizo Kabushiki Kaisha | Servo circuit for an information recording and/or reproducing apparatus |
| EP0264535A3 (en) * | 1986-10-24 | 1990-09-05 | Hewlett-Packard Company | Shock and vibration disturbance compensation system for disc drives |
| KR910010185B1 (ko) * | 1987-08-11 | 1991-12-20 | 후지쓰 가부시끼가이샤 | 멀티-포지셔너 자기 디스크 저장 장치에 있는 자기 헤드 포지셔너들의 제어 시스템 |
| US4947093A (en) * | 1988-11-25 | 1990-08-07 | Micropolis Corporation | Shock resistant winchester disk drive |
| JPH02306482A (ja) * | 1989-05-19 | 1990-12-19 | Mitsubishi Electric Corp | ディスク装置 |
| JPH03189974A (ja) * | 1989-12-19 | 1991-08-19 | Sharp Corp | ディスクプレーヤーのトラッキングサーボ利得調整装置 |
-
1992
- 1992-06-04 US US07/893,303 patent/US5299075A/en not_active Expired - Lifetime
-
1993
- 1993-04-21 DE DE69319797T patent/DE69319797T2/de not_active Expired - Fee Related
- 1993-04-21 EP EP93106487A patent/EP0572789B1/en not_active Expired - Lifetime
- 1993-06-04 JP JP16022493A patent/JP3723581B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0572789B1 (en) | 1998-07-22 |
| EP0572789A3 (enrdf_load_stackoverflow) | 1994-02-16 |
| JP3723581B2 (ja) | 2005-12-07 |
| US5299075A (en) | 1994-03-29 |
| JPH0689520A (ja) | 1994-03-29 |
| EP0572789A2 (en) | 1993-12-08 |
| DE69319797D1 (de) | 1998-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE), |
|
| 8327 | Change in the person/name/address of the patent owner |
Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE |
|
| 8339 | Ceased/non-payment of the annual fee |